Tuning of the Optical Properties in Photonic Crystals Made of Macroporous Silicon
Figure 2
(a) SEM top-view
and side-view of a photonic crystal made of macroporous silicon containing a
two-dimensional hexagonal array of pores with periodically modulated diameter. (b)
Transmission spectra of the same photonic crystal for light propagation along the
pore axes if the sample is filled with (—) air, (- - -) 5CB in its
nematic phase, and () 5CB in its isotropic liquid state,
respectively. (c) Comparison of the calculated dispersion relation using the
plane wave approximation and the experimental spectra. For details, see [36].
